How did barbarian groups affect the western Roman Empire?

Various barbarian groups weakened the empire with a series of invasions

various barbarian groups were conquered and became Roman slaves

Various barbarian groups volunteered to become mercenary solo diets

Various barbarian groups were contracted to protect Roman boarders

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

Which action by the us war department angered chief red cloud to the point that he refused to sign the treaty of fort laramie ? a) the killing of buffalo by the united states troops b) the appointment of troops to the powder river basin c) the burning of parts of the powder river basin d) the murder of chief red cloud’s wife

Why might the greeck city states have an advantage over the persians